Design
Intersil’s “DAQ on a Stick” Provides Complete Thermocouple And Strain Gauge Reference Designs
Intersil have today announced that they will demonstrate new thermocouple and strain gauge designs using a convenient “DAQ on a Stick” at Embedded World 2013. The “DAQ on a Stick” is a reference design highlighting Intersil’s precision products with different microcontrollers.
The The complete reference designs are housed in a USB stick form factor. This compact design enables the user to power the application through the USB port and monitor the temperature through the GUI interface on a computer.
The solutions feature a variety of Intersil ICs, including the ISL28134 low noise, zero-drift op amp, the ISL26102 24-bit delta sigma converter, and the ISL21010 precision bandgap voltage reference. The Energy Micro EFM32LG332F128 is an extremely energy efficient 32-bit ARM Cortex MCU.
The thermocouple application circuit is calibrated at 25°C to within ± 0.1°C using a Fluke 54II Thermometer. The accuracy of this design is down to ±0.75% (limits of error).
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